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7 Best Diono Car Seats Reviewed [Mom Approved]

Best Diono Car SeatsCar seat safety is a number one priority for parents and finding the right car seat for their child is a major part of that. With so many different car seats on the market, choosing the right one can get really stressful.

When shopping for a car seat for your child, there are a lot of things to keep in mind to ensure you’re buying a correctly sized seat.  Between 72 and 84 percent of child restraints are misused. The most common misuse is an incorrect size seat for your child’s age and size (source).

Best Diono Car Seats

NameWeight LimitHeight LimitMode
Diono Radian 3R Convertible Seat5-100 lbs.57" Both Rear-Facing/Forward-Facing
Dino Radian 3RXT Convertible Seat5-120 lbs.57"Both Rear-Facing/Forward-Facing
Diono Radian 3RX Convertible Seat5-120 lbs.57"Both Rear-Facing/Forward-Facing
Diono Rainier 2AX Convertible Seat5-120 lbs.57"Both Rear-Facing/Forward-Facing
Diono Cambria 2-in-1 Booster40-120 lbs.63"Highback Booster
Diono Monterey XT Booster40-120 lbs.63"Highback Booster

1. Diono Radian 3R All-In-One Convertible Car Seat – Very Compact

This car seat is Diono’s original “3 across” car seat. This means that these seats are so compact, they can be lined up comfortably next to each other in the back seat. This is great for parents with multiple car seat bound kids.

It offers optimal security for extended rear-facing and into front-facing too. The car seat’s frame is made of powerfully integrated steel and the seat itself is made of memory foam. The walls are made of aluminum and are lined with energy-absorbing foam.

The Radian 3R is super practical because it grows with your child from infancy up until childhood.  The seats rear-facing capabilities max out at 40 pounds, forward-facing at 65 pounds in the 5-point harness, and booster seat up to 100 pounds. It’s also super convenient because it’s easy to install. It uses their own SuperLatch audible-click and visual-locking indicator, 5 shoulder and 3 buckle positions, an expandable footrest, and a non-slip rubber base.

Pros

  • Very Compact 
  • Fits 3 Car Seats In A Row 
  • Converts to A Booster After Front Facing
  • Folds completely for Storage

Cons

  • Difficult Straps
Diono 2019 Radian 3R All-in-One Convertible Car Seat, Black
330 Reviews
Diono 2019 Radian 3R All-in-One Convertible Car Seat, Black
  • JOY OF THE JOURNEY: From birth, keep your little one rear-facing longer to 40 lbs., and as they grow...
  • THREES NOT A CROWD: For safety that fits 3 across the Radian 3R packs all our innovative safety...
  • LOVINGLY ENGINEERED: The Radian 3R is built with automotive-strength steel, engineered into a dual...

2.Diono Radian 3RXT All-In-One Convertible Car Seat – Grows With Your Child

Our next pick is the Diono Radian 3RXT All-in-One Convertible Car Seat. Like other Diono car seats, the 3RXT also comes with the 3 across promise for mid-sized vehicles. The seat’s fabric is removable and safe for the washing machine, but it’s recommended to let it air dry to avoid the possibility of shrinkage.

Its frame is built from a steel alloy frame and is reinforced with aluminum side walls lined with EPS foam to help cushion an impact. The headrest is also adjustable to grow with your child and keep them safe and comfortable. This car seat is perfect for growing with your child as they can rear face up to 45 pounds, front face up to 65 pounds, and booster up to 120 pounds.

Pros

  • Able To Grow With Your Child 
  • Ready for the Next Step
  • Reinforced with Steel Alloy

Cons

  • Difficult to Transport Between Vehicles
Diono 2019 Radian 3RXT All-in-One Convertible Car Seat, Black
  • JOY OF THE JOURNEY: From birth, keep your little one rear-facing longer to 40 lbs., and as they grow...
  • THREES NOT A CROWD: For safety that fits 3 across the Radian 3RXT packs all our innovative safety...
  • LOVINGLY ENGINEERED: The Radian 3RXT is built with automotive-strength steel, engineered into a dual...

3.Diono Radian 3RX All-In-One Convertible Car Seat – SafeStop Technology

Our next pick is the Radian 3RX All-In-One Convertible Car Seat. This seat comes in five different color options which are nice if you like having a variety to choose from. The Radian 3RX comes with plenty of extra safety features to help ensure the safety and comfort of your little one as well.

It has a unique SuperLatch system for easy installation as well as side impact protection, a rear-facing tether, and patented SafeStop technology. The SafeStop technology is helpful because it helps absorb energy in the event of a crash and keeps your child snug and safe in their seat. The fabric covers are super soft and the memory foam seat will help cushion your child’s bum for optimal comfort. It also comes with a tailored infant support cushion and a cupholder too.

Pros

  • Added Safety Features
  • SafeStop Technology
  • Memory Foam Seat Cushion 
  • Has Cupholders

Cons

  • Head Bounches Against the Car Seat’s Headrest in Front Facing Mode
Diono 2019 Radian 3RX All-in-One Convertible Car Seat, Light Grey
  • JOY OF THE JOURNEY: From birth, keep your little one rear-facing longer to 40 lbs., and as they grow...
  • THREES NOT A CROWD: For safety that fits 3 across the Radian 3RX packs all our innovative safety...
  • LOVINGLY ENGINEERED: The Radian 3RX is built with automotive-strength steel, engineered into a dual...

4.Diono Rainier 2AX Convertible Car Seat – Unique Frame Design

Our next choice is the Rainier 2AX Convertible Car Seat.This Diono seat is perfect for extended rear-facing as it accommodates it for children up to 50 pounds. It can then be moved to forward-facing for up to 65 pounds.  Its made of a full steel frame and has extra-deep reinforced aluminum siding with an energy-absorbing foam lining.

The steel is engineered into a dual spine to manage and dissipate energy while also supporting your baby.These features are all going to ensure your child is well taken care of in the event of an accident. The seat also comes with added infant support and a cupholder for holding your child’s snack or drink.

Pros

  • Unique Frame Design
  • Dual Spine Will Help with Any Shock Absorption
  • Extended Rear-Facing Abilities
  • Has Cupholder

Cons

  • Only One Cupholder
Diono Rainier 2AX Convertible Car Seat, Dark Grey
  • ALL-STAR CAR SEAT SAFETY & DESIGN: The Rainier 2AX Convertible Car Seat is a luxurious child car...
  • SUPERIOR EXTENDED REAR-FACING SAFETY & SECURITY: Featuring our powerful integrated steel framework,...
  • DYNAMIC HEAD & SIDE IMPACT PROTECTION: Reinforced with memory foam seat and extra deep aluminum side...

5.Diono Cambria 2-in-1 Booster – Superior Comfort

So maybe your child is growing out of the front-facing restrictions and they’re ready for a booster seat. This one is a great option because it can hold up to 120 pounds. This will ensure that your child can use it for as long as possible.

It can convert from high back to backless relatively easily and is super portable and storable.It also comes with two retractable cup holders which are perfect for holding a snack and a drink at the same time. Diono Cambria has the ability to recline and has 6 different headrest positions as well, so your child won’t complain of being uncomfortable at all.

Pros

  • Great Booster Seat
  • Has Many Amenities for Superior Comfort
  • 2 Convenient Cupholders
  • Kids Don’t Need to Hold Their Drink/Snack

Cons

  • It is Quite Large
  • Child Needs Help Buckling Himself In
Diono Cambria High Back and Backless Booster, Forward-Facing...
  • OVERPROTECT IN ALL THE RIGHT WAYS: The Cambria Booster is a stylish multi-use child car seat that...
  • DEPENDABLE SAFETY: Created to accommodate growing children 38” to 63” tall weighing 40 to 120...
  • DYNAMIC COMFORT PROTECTION: Featuring spacious shoulder-, hip- and leg-room with an adjustable...

6.Diono Monterey XT Booster – EPS Energy-Absorbing Foam

Next up on our list is the Monterey XT Booster Seat. This Diono Monterey booster seat can accommodate 40-120 pounds. The sides are reinforced with aluminum and EPS energy-absorbing foam. This seat is specifically designed to grow with your child. The headrest has 11 different positions to accommodate your child’s height with an easy-to-use dial on the back of the seat.

It’s super easy to install with its LATCH connectors and front adjusters. It can also be converted from a high backed booster to a backless one with little to no effort at all. The bottom of the seat is angled and longer to prevent submarining and support your child’s growing legs.

Pros

  • Has Retractable Snack and Cup Holders
  • Can Easily Fold-In and Out
  • Great Fit and Convenience
  • Can Be Used Up Until Your Child is 120 pounds or 63 inches tall

Cons

  • Doesn’t Come With A Lot Of Padding
Diono Monterey XT LATCH, 2-in-1 Expandable Booster Seat, Heather...
  • SAFETY THAT GROWS WITH YOUR CHILD: The Monterey XT Booster is an innovative multi-use child car seat...
  • DEPENDABLE SAFETY: Created to accommodate growing children 38” to 63” tall weighing 40 to 120...
  • DYNAMIC HEAD & SHOULDER PROTECTION: Engineered with adjustable 11-position headrest and 20”...

7.Diono Everett NXT Booster – Very Lightweight

Diono Everett seat is super comfortable that your child will love for years to come. It is the last seat on our list but since it is a booster, Diono Everett NXT will grow with your child. This Diono booster seat can accommodate children ages 4-12 years old.

The headrest has seven different positions and can be easily altered by the handle on the back of the seat. It’s an ergonomic seat, which is really nice for providing impact protection and optimal comfort. There are a few different ways this seat can be installed, but they are all relatively easy to understand and won’t cause a ton of frustration when trying to transport it between cars.

Its machine washable fabric and lightweight design make this booster seat a super convenient option for parents. Most other Diono car seats and boosters are much bulkier and heavier and that can make swapping vehicles a major hassle. Diono Everett is still considered a new car seat on the market, so there isn’t a ton of feedback on it yet.

Pros

  • Has Very Lightweight Design
  • Can Make Swapping Vehicles A Breeze
  • Has Ergonomic Memory Foam Fabric To Keep Your Child Comfy

Cons

  • Not A Ton of Feedback Available On this Seat Yet
Sale
Diono Everett NXT Ridgid Latch, Belt Positioning Booster Seat,...
  • SLIM FIT DESIGN: Designed to be slim fit without compromising comfort and support for your child
  • EASY CLICK RIGID LATCH CONNECTORS: Offers a quick and simple way to secure the booster seat using...
  • SUPER LIGHTWEIGHT: Weighing only 8.9 lbs everett NXT is super light allowing you to move the seat...

Amazon’s Top 3 Best Selling Diono Car Seats

Bestseller No. 1
Diono 2020 Radian 3R, 3 in 1 Convertible, 10 years 1 Car Seat,...
  • NEW FOR 2020 REAR-FACING FOR LONGER - Designed and engineered to keep your child rear facing even...
  • NEW FOR 2020 - High Back Booster mode now up to 120 lb / 54 kg
  • 10 YEARS ONE CAR SEAT - With 4 ways to travel from birth to booster, the radian 3R adapts as your...
SaleBestseller No. 2
Diono 2020 Radian 3RXT, 4-in-1 Convertible, Extended Rear Facing,...
  • NEW FOR 2020: REAR-FACING FOR LONGER - Designed and engineered to keep your child rear facing for...
  • 10 YEARS ONE CAR SEAT - With 4 ways to travel from birth to booster, the radian 3RXT adapts as your...
  • STEEL CORE - Mechanically engineered, reinforced steel core, made from automotive grade high...
SaleBestseller No. 3
Diono 2020 Radian 3RXT, 4-in-1 Convertible, Extended Rear Facing,...
94 Reviews
Diono 2020 Radian 3RXT, 4-in-1 Convertible, Extended Rear Facing,...
  • NEW FOR 2020: REAR-FACING FOR LONGER - Designed and engineered to keep your child rear facing for...
  • 10 YEARS ONE CAR SEAT - With 4 ways to travel from birth to booster, the radian 3RXT adapts as your...
  • STEEL CORE - Mechanically engineered, reinforced steel core, made from automotive grade high...

Buyer’s Guide

When it comes to car seats, you’re going to want only the best for your child. In order to ensure you’re finding the perfect one, there are some things like safety and durability to keep in mind among other things.

Safety Features

A car seat’s safety rating should be your number one concern while shopping. All car seats are required to pass a 30 mph crash test to be released to the market (source).  Most car seat manufacturers have added safety features to increase a seat’s safety level as well.

Diono, in particular, uses high-quality steel in their car seat frames as well as comfortable padding to keep your baby safe and comfortable at the same time.

Durability

You’re also going to want a car seat that is durable and long lasting. You’ll want to avoid a seat that seems to buckle under your child’s weight or has parts that break off easily. This ties back into the car seat’s safety features and their rating. If your car seat isn’t durable, it surely won’t keep your child safe in the event of a car accident.

Ease of Use

As important as a car seat’s safety features are, it won’t be any use if you’re too frustrated to constantly get your child in an out of the seat. This will only cause frustration from both you and your child. This is especially important if you need to switch the seat between cars often. Find a car seat that boasts easy buckling and unbuckling and make sure to note how easy or difficult it is to install.

Comfort

Above all, your child will need a comfortable car seat. When shopping around, take note of what comfort features a seat provides. Do they have an additional insert for the head? What about back and butt support? Nobody wants to deal with an annoyed and crying child in the car, so comfort is key. 

Which Diono Car Seat Would Your Child Like?

Diono car seats are perhaps some of the safest seats on the market. They use a variety of safety features in their car seat and booster seat designs to help keep parents at ease. This is why we like the brand so much.

They’re also really nice because all of their convertible car seats can fit 3 across in the backseat of any midsize vehicle. This makes them the perfect car seats for parents of multiples. You really can’t go wrong with any of these, but our favorite is their Radian 3R convertible seat.

We like this one specifically for its compact abilities and air travel certification. Which of these seats is your favorite? We want to hear from you!

Last update on 2020-09-21 / Affiliate links / Images from Amazon Product Advertising API

Welcome to my car seat blog! As a mom of 3, I put together with other hard-working moms a highly informative one-stop car seat resource, full with many reviews and buyer guides. I hope you find it invaluable. Thank you for trusting me & my team! - Keren

2 Comments

  1. Morgan Ferguson Reply

    I am looking to fit 2 high back booster seats and 1 5 pt. harness into the back of my chevy Equinox. What are the best Dionos or carseats to buy at an affordable price?

    • Hi, Morgan!
      I would recommend buying Diono Radian 3R (it comes with 5 pt. harness and very sturdy and safe). You can easily change it to booster mode when needed. With this combination seat, you could get 2 Diono Everett NXT Boosters. All these seats are very affordable and can be found in my post listed as #1 and #7. Best, Keren Simanova.

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